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United States Patent | 5,514,952 |
Parkinson | May 7, 1996 |
Axial alignment detection apparatus for a shaft rotatable about an axis includes alignment indicating means rotatable by the shaft and comprising a plurality of detectable elements; and detector means for detecting the elements and alignment of the shaft as a function of the elements; the elements comprising at least one reference element and at least one alignment dependent element, wherein the reference and alignment elements have a detectable alignment dependent relationship to each other.
Inventors: | Parkinson; James R. (Vergennes, VT) |
Assignee: | Simmonds Precision Products Inc. (Akron, OH) |
Appl. No.: | 271215 |
Filed: | July 5, 1994 |
Current U.S. Class: | 324/207.25; 33/661; 324/207.24 |
Intern'l Class: | G01B 007/30; G01B 007/14; G01D 021/02 |
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